Ключевые слова:
Air heaters, Convection heaters, Heaters, Heating equipment, Gas-powered devices, Commercial, Industrial, Gas space heating, Definitions, Classification systems, Design, Conversion, Flues, Pipe connections, Control devices, Safety devices, Fire safety, Equipment safety, Burners, Ignition systems (heat engineering), Flames, Stability, Commissioning, Marking, Instructions for use, Performance, Temperature, Combustion products, Efficiency, Performance testing, Testing conditions, Leak tests, Artificial weathering tests, Test equipment, Maintenance, Electrical safety, Electrical testing, Flow regulators, Controllers, Automatic, Cut-out devices, Thermostats, Safety measures, Ignition, Chemical composition, Designations, Accuracy, Test pressure